Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

SOUTHWEST · FLIGHT WN 1596 SCHEDULED · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Today

WN 1596 · DEN → ONT

departs 2:02 PM MT · arrives 2:42 PM PT

Forecast issued Wed 1:00 PM ET · 3h before departure

Arrive at ONT more than 15 minutes late?

55% chance · ±0 pts +11 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Other factors

↑ 2pm departures from DEN are often late

↑ This flight has been late 32% of the time recently

↓ Wednesdays in September are usually quieter than average

↓ Mostly benign weather forecast at ONT

Weather at each end

DEN (origin) Gusts18 kt Ceiling6,000 ft Visibility10+ mi Precip0.05 in

ONT (destination) Gusts17 kt Ceilingnone (clear) Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

WN 1596 · DEN → ONT

Odds over time